Bathtub



FIG. 1 is a perspective view of the top, front and right side of a bathtub showing our new design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a top plan view thereof;

FIG. 7 is a bottom view thereof; and,

FIG. 8 is a cross sectional view at 8—8 in FIG. 6 omitting interior mechanism thereof. 

The ornamental design for a bathtub, as shown and described. 